Role of RpoS in fine-tuning the synthesis of Vi capsular polysaccharide in Salmonella enterica serotype Typhi.

abstract：:The Staphylococcus aureus repeat (STAR) element is a sequence identified in two intergenic regions in S. aureus. The element is found in 13 to 21 copies in individual S. aureus strains, and elements in the homologous intergenic location are variable in length. The element sequence consists of several small and unusual...

journal_title：Infection and immunity

authors： Cramton SE,Schnell NF,Götz F,Brückner R

更新日期：2000-04-01 00:00:00

abstract：:Strains of Corynebacterium ulcerans and Corynebacterium pseudotuberculosis (Corynebacterium ovis) were examined for the production of diphtheria toxin. A majority of C. ulcerans strains (25 of 37) and 1 C. pseudotuberculosis strain (1 of 14) gave a positive Elek test for diphtheria toxin, and for all strains but 1, pr...

journal_title：Infection and immunity

authors： Groman N,Schiller J,Russell J

更新日期：1984-08-01 00:00:00

abstract：:Streptococcus pneumoniae is a major cause of pneumonia and meningitis. Airway colonization is a necessary precursor to disease, but little is known about how the bacteria establish and maintain colonization. Carbohydrates are required as a carbon source for pneumococcal growth and, therefore, for colonization. Free ca...

journal_title：Infection and immunity

authors： Marion C,Burnaugh AM,Woodiga SA,King SJ

更新日期：2011-03-01 00:00:00

abstract：:Borrelia burgdorferi-induced arthritis in mice is characterized by tendonitis, synovitis, and inflammatory-cell infiltrate, predominantly of neutrophils. Because genetic deficiency in E and P selectins results in delayed recruitment of neutrophils to sites of inflammation, mice with this deficiency were tested for the...

journal_title：Infection and immunity

authors： Seiler KP,Ma Y,Weis JH,Frenette PS,Hynes RO,Wagner DD,Weis JJ

更新日期：1998-09-01 00:00:00

abstract：:We studied apoptosis in a human ileocecal adenocarcinoma tumor cell line (HCT-8) infected with Cryptosporidium parvum, from 2 to 72 h postinfection (h.p.i.). At 2 h.p.i., the percentage of annexin V-positive cells in the cell culture had increased to 10% compared to 2.5% in noninfected control culture; sorted infected...

journal_title：Infection and immunity

authors： Mele R,Gomez Morales MA,Tosini F,Pozio E

更新日期：2004-10-01 00:00:00

abstract：:Anaplasma marginale subsp. centrale was the first vaccine used to protect against a rickettsial disease and is still in widespread use a century later. As its use preceded development of either cryopreservation or cell culture, the vaccine strain was maintained for decades by sequential passage among donor animals, ex...

journal_title：Infection and immunity

authors： Herndon DR,Ueti MW,Reif KE,Noh SM,Brayton KA,Agnes JT,Palmer GH

更新日期：2013-05-01 00:00:00

abstract：:A better knowledge on how immune responses are initiated in mucosal tissues would facilitate the design of new mucosal vaccines, as well as improve our understanding on host defense against infection. We investigated the mechanisms of adjuvanticity of the Mycoplasma-derived macrophage-activating 2-kDa lipopeptide (MAL...

journal_title：Infection and immunity

authors： Rharbaoui F,Westendorf A,Link C,Felk S,Buer J,Gunzer M,Guzmán CA

更新日期：2004-12-01 00:00:00

abstract：:Arg-gingipain (Rgp) and Lys-gingipain (Kgp) are Porphyromonas gingivalis cysteine proteinases implicated as major virulence factors in pathologies of periodontitis. We purified a 660-kDa cell-associated gingipain complex existing as a homodimer of two catalytically active monomers which comprises their catalytic and a...

journal_title：Infection and immunity

authors： Takii R,Kadowaki T,Baba A,Tsukuba T,Yamamoto K

更新日期：2005-02-01 00:00:00

abstract：:Experiments were performed to investigate the usefulness of an enzyme-linked immunosorbent assay utilizing avidin-biotin interaction as a diagnostic tool for detection of Toxoplasma antigen in blood. The lower limit of sensitivity of the assay by this method was ca. 4 ng/ml, and standard assays provided a linear plot ...

journal_title：Infection and immunity

authors： Ise Y,Iida T,Sato K,Suzuki T,Shimada K,Nishioka K

更新日期：1985-04-01 00:00:00

abstract：:A high-molecular-weight, immunogenic form of the lipopolysaccharide O side chain of Pseudomonas aeruginosa Fisher immunotype 4 (type 4, International Antigenic Typing System 1, Lanyi O:6) was isolated and characterized. Analysis by nuclear magnetic resonance spectroscopy confirmed the structural similarity of this hig...

journal_title：Infection and immunity

authors： Pier GB,Pollack M

更新日期：1989-02-01 00:00:00

abstract：:Although there is substantial evidence that type IV pili purified from diarrhea-associated Aeromonas species (designated Bfp for bundle-forming pilus) are intestinal colonization factors (S. M. Kirov, L. A. O'Donovan, and K. Sanderson, Infect. Immun. 67:5447-5454, 1999), nothing is known regarding the function of a se...

journal_title：Infection and immunity

authors： Kirov SM,Barnett TC,Pepe CM,Strom MS,Albert MJ

更新日期：2000-07-01 00:00:00

abstract：:Acquisition of immunity to Plasmodium falciparum sexual stages is a key determinant for reducing human-mosquito transmission by preventing the fertilization and the development of the parasite in the mosquito midgut. Naturally acquired immunity against sexual stages may therefore form the basis for the development of ...

journal_title：Infection and immunity

authors： Ouédraogo AL,Roeffen W,Luty AJ,de Vlas SJ,Nebie I,Ilboudo-Sanogo E,Cuzin-Ouattara N,Teleen K,Tiono AB,Sirima SB,Verhave JP,Bousema T,Sauerwein R

更新日期：2011-12-01 00:00:00

abstract：:The theoretic basis for developing conjugate vaccines, to induce immunoglobulin G (IgG) lipopolysaccharide (LPS) antibodies for the prevention of shigellosis, has been described (J. B. Robbins, C.-Y. Chu, and R. Schneerson, Clin. Infect. Dis. 15:346-361, 1992). The O-specific polysaccharides (O-SPs) of Shigella dysent...

journal_title：Infection and immunity

authors： Taylor DN,Trofa AC,Sadoff J,Chu C,Bryla D,Shiloach J,Cohen D,Ashkenazi S,Lerman Y,Egan W

更新日期：1993-09-01 00:00:00

abstract：:Although cryptococcosis is characterized as a chronic central nervous system disease, it is generally accepted that the lungs are the primary portal of entry for the etiological agent. Despite this, there is a distinct lack of evidence that viable airborne particles of Cryptococcus neoformans are small enough to reach...

journal_title：Infection and immunity

authors： Neilson JB,Fromtling RA,Bulmer GS

更新日期：1977-09-01 00:00:00

abstract：:Inflammatory mediators orchestrate the host immune and metabolic response to acute bacterial infections and mediate the events leading to septic shock. Tumor necrosis factor (TNF) has long been identified as one of the proximal mediators of endotoxin action. Recent studies have implicated peroxisome proliferator-activ...

journal_title：Infection and immunity

authors： Hill MR,Clarke S,Rodgers K,Thornhill B,Peters JM,Gonzalez FJ,Gimble JM

更新日期：1999-07-01 00:00:00

abstract：:Our previous animal studies showed that maternal Porphyromonas gingivalis infection in a subcutaneous chamber is associated with hepatic and uterine translocation, as well as systemic induction of maternal inflammatory responses, both of which were associated with fetal growth restriction (FGR). However, P. gingivalis...

journal_title：Infection and immunity

authors： Lin D,Smith MA,Elter J,Champagne C,Downey CL,Beck J,Offenbacher S

更新日期：2003-09-01 00:00:00

abstract：:Actinobacillus actinomycetemcomitans is the etiologic agent of localized aggressive periodontitis, a rapidly progressing oral disease that occurs in adolescents. A. actinomycetemcomitans can also cause systemic disease, including infective endocarditis. In early work on A. actinomycetemcomitans workers concluded that ...

journal_title：Infection and immunity

authors： Balashova NV,Crosby JA,Al Ghofaily L,Kachlany SC

更新日期：2006-04-01 00:00:00

abstract：:Two distinct monoclonal antibodies, one to pertussis toxin subunit S2, called 9G8, and another to subunits S2 and S3, called 11E6, were generated from the hybridomas of myeloma SP2/0 and spleen cells of BALB/c mice immunized mainly with the subunit S234 complex. Binding ability of 9G8 and 11E6 to the subunits was conf...

journal_title：Infection and immunity

authors： Sato H,Sato Y,Ito A,Ohishi I

更新日期：1987-04-01 00:00:00

abstract：:The rate of clearance of Vibrio fetus var. venerealis was measured by using in vivo and in vitro methods. The rate of clearance from the circulating blood increased in immune rabbits and reached a plateau 4 days after immunization. Thereafter in vivo clearance did not increase further despite rising agglutinin titers....

journal_title：Infection and immunity

authors： Carrier SP,Kramer TT

更新日期：1971-06-01 00:00:00

abstract：:A gene bank of group A Streptococcus strain Manfredo (M protein serotype 5) was constructed with a bacteriophage lambda vector-Escherichia coli K-12 host system and screened by immunoblotting hybrid phage plaques with antisera raised to purified pep M5 (serotype 5 M protein fragment released from the streptococcal cel...

journal_title：Infection and immunity

authors： Kehoe MA,Poirier TP,Beachey EH,Timmis KN

更新日期：1985-04-01 00:00:00

abstract：:It was demonstrated that complement-coated sheep erythrocytes bind to Candida albicans cells grown in serum-free RPMI 1640 medium. Testing of purified complement components proved that iC3b and C3d were responsible for the reaction, whereas C3b and C3b-H reacted only slightly if at all. Binding occurred only to C. alb...

journal_title：Infection and immunity

authors： Heidenreich F,Dierich MP

更新日期：1985-11-01 00:00:00

abstract：:Specific proteolytic destruction of the human chemotaxin, C5a, is a property of group A and B streptococcal pathogens. Here we show that virulent group G streptococci from human sources also express C5a peptidase activity. The enzyme responsible for this activity is approximately the same size as and is antigenically ...

journal_title：Infection and immunity

authors： Cleary PP,Peterson J,Chen C,Nelson C

更新日期：1991-07-01 00:00:00

abstract：:Mapping vectors containing antibiotic resistance markers inserted adjacent to or within different cloned genes from Streptococcus mutans were used to determine the relative positions of these genes on the chromosome. The gtfA, ftf, and scrB genes were inserted into streptococcal mapping vector pVA891 adjacent to an Em...

journal_title：Infection and immunity

authors： Perry D,Kuramitsu HK

更新日期：1989-03-01 00:00:00

abstract：:In vitro, Clostridium perfringens enterotoxin (CPE) binds to human ileal epithelium and induces morphological damage concurrently with reduced short-circuit current, transepithelial resistance, and net water absorption. CPE also binds to the human colon in vitro but causes only slight morphological and transport chang...

journal_title：Infection and immunity

authors： Fernández Miyakawa ME,Pistone Creydt V,Uzal FA,McClane BA,Ibarra C

更新日期：2005-12-01 00:00:00

abstract：:Antibodies against feline leukemia virus (FeLV) and the feline oncornavirus-associated cell membrane antigen (FOCMA) were transferred from pregnant cats to their suckling kittens. All of these kittens were protected against infection and oncogenesis by virulent FeLV when challenged at 2 weeks of age. Suckling kittens ...

journal_title：Infection and immunity

authors： Hoover EA,Schaller JP,Mathes LE,Olsen RG

更新日期：1977-04-01 00:00:00

abstract：:One mechanism by which interferons (IFNs) can inhibit chlamydial infection is by the induction of the enzyme indoleamine 2,3-dioxygenase (IDO), which restricts the availability of tryptophan, which is required for chlamydial growth. Other immunomodulating agents, including interleukin-1 (IL-1), can interact synergisti...

journal_title：Infection and immunity

authors： Carlin JM,Weller JB

更新日期：1995-05-01 00:00:00

abstract：:Decay-accelerating factor (DAF), a complement regulatory protein, also serves as a receptor for Dr adhesin-bearing Escherichia coli. The repeat three of DAF was shown to be important in Dr adhesin binding and complement regulation. However, Dr adhesins do not bind to red blood cells with the rare polymorphism of DAF, ...

journal_title：Infection and immunity

authors： Hasan RJ,Pawelczyk E,Urvil PT,Venkatarajan MS,Goluszko P,Kur J,Selvarangan R,Nowicki S,Braun WA,Nowicki BJ

更新日期：2002-08-01 00:00:00

abstract：:A unique enzyme-linked immunosorbent assay was developed to detect soluble peptidoglycans in biological fluids. It makes use of the similar affinities of vancomycin and purified rabbit antibodies to peptidoglycan precursor sequences found in soluble peptidoglycans. This assay has been used to detect as little as 500 p...

journal_title：Infection and immunity

authors： Park H,Zeiger AR,Schumacher HR

更新日期：1984-01-01 00:00:00

abstract：:Cryptococcal meningoencephalitis develops as a result of hematogenous dissemination of inhaled Cryptococcus neoformans from the lung to the brain. The mechanism(s) by which C. neoformans crosses the blood-brain barrier (BBB) is a key unresolved issue in cryptococcosis. We used both an in vivo mouse model and an in vit...

journal_title：Infection and immunity

authors： Chang YC,Stins MF,McCaffery MJ,Miller GF,Pare DR,Dam T,Paul-Satyaseela M,Kim KS,Kwon-Chung KJ

更新日期：2004-09-01 00:00:00

abstract：:Human gamma delta T cells are known to respond at high frequencies to pathogenic mycobacteria. Here we show that opportunistic strains of mycobacteria share with pathogenic mycobacteria the ability to trigger at high frequencies human V gamma 9V delta 2 T-cell-receptor-positive T lymphocytes. Stimulating ligands were ...

journal_title：Infection and immunity

authors： Häcker G,Kromer S,Heeg K,Ivanyi J,Wagner H,Pfeffer K

更新日期：1992-07-01 00:00:00